Will AWS ever prevent sending of email from BYOIP IPs?

Question

I know a process exists to allowlist non-BYOIP EIPs for email sending from EC2, and the BYOIP VPC FAQ says:

> IP Reputation: Many customers consider the reputation of their IP addresses to be a strategic asset and want to use those IPs on AWS with their resources. For example, customers who maintain services such as outbound e-mail MTA and have high reputation IPs, can now bring over their IP space and successfully maintain their existing sending success rate.

However, a customer asks if AWS will ever intervene or block email delivery if e.g. bounce rate or complaints occur for their own IPs. Is it safe to tell them "no"?

Accepted Answer

Our abuse team would take action if there were abuse reported. They would receive a notification. Our [public docs][1] specify the process. Note that we throttle SMTP traffic (port 25) to prevent open mail relay on EC2: https://aws.amazon.com/premiumsupport/knowledge-center/ec2-port-25-throttle/. The customer can follow that guide to remove the throttling.

[1]: https://aws.amazon.com/premiumsupport/knowledge-center/aws-abuse-report/

Will AWS ever prevent sending of email from BYOIP IPs?

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